* [linux-lvm] cache performance
@ 2017-12-14 20:18 Xen
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From: Xen @ 2017-12-14 20:18 UTC (permalink / raw)
To: Linux lvm
Probably not much of interest (16.04 Ubuntu)
Doing readahead tests with cache connected:
- 3400 ms average
- 5200 ms average
Creating a new cache:
- 2000 ms average
That's a huge difference.
A fresh cache only primed with ureadahead sees its performance go up by
Maybe more sequential data ended up in the cache.
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